Patents by Inventor Joon-Sik Park
Joon-Sik Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240099114Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.Type: ApplicationFiled: November 24, 2023Publication date: March 21, 2024Inventors: Jae Sik KIM, Jae Ik KIM, Jung Sun PARK, Seung Yong SONG, Duck Jung LEE, Yeon Hwa LEE, Joon Gu LEE, Kyu Hwan HWANG
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Publication number: 20240086603Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Applicant: SAMSUNG ELECTRONICS CO, LTD.Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
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Patent number: 8992534Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.Type: GrantFiled: February 8, 2012Date of Patent: March 31, 2015Inventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
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Patent number: 8388120Abstract: Disclosed is an integrated apparatus for supplying ink and regulating pressure, which comprises a chamber accommodating ink, a main chamber preliminarily storing ink to be supplied to the chamber, a nozzle communicating with the chamber and jetting ink transferred from the chamber to an outside, a first valve blocking or letting flow of ink between the main chamber and the chamber, a second valve blocking and letting flow of ink between the chamber and the nozzle, a piston placed above ink accommodated in the chamber and reciprocating rectilinearly while sealing ink inside the chamber, a piston driver providing a driving force to the piston, a sensor installed in the chamber and sensing pressure due to weight of ink, and a controller receiving a sensed signal from the sensor and outputting a signal for controlling the piston to the piston, wherein the piston moves down as a level of ink accommodated in the chamber is lowered when ink is discharged to the outside through the nozzle, and the piston moves up andType: GrantFiled: May 25, 2010Date of Patent: March 5, 2013Assignee: Korea Institute of Machinery and MaterialsInventors: Dong-Youn Shin, Jun-Hee Lee, Su-A Park, Joon-Sik Park, Wan-Doo Kim
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Patent number: 8304497Abstract: The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.Type: GrantFiled: April 28, 2006Date of Patent: November 6, 2012Assignee: The University of TokyoInventors: Kazunori Kataoka, Aya Koide, Kensuke Osada, Yuichi Yamasaki, Shigeto Fukushima, Joon-Sik Park
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Publication number: 20120165830Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.Type: ApplicationFiled: February 8, 2012Publication date: June 28, 2012Applicants: Chang San Medical Treatment FoundationInventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
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Publication number: 20100302325Abstract: Disclosed is an integrated apparatus for supplying ink and regulating pressure, which comprises a chamber accommodating ink, a main chamber preliminarily storing ink to be supplied to the chamber, a nozzle communicating with the chamber and jetting ink transferred from the chamber to an outside, a first valve blocking or letting flow of ink between the main chamber and the chamber, a second valve blocking and letting flow of ink between the chamber and the nozzle, a piston placed above ink accommodated in the chamber and reciprocating rectilinearly while sealing ink inside the chamber, a piston driver providing a driving force to the piston, a sensor installed in the chamber and sensing pressure due to weight of ink, and a controller receiving a sensed signal from the sensor and outputting a signal for controlling the piston to the piston, wherein the piston moves down as a level of ink accommodated in the chamber is lowered when ink is discharged to the outside through the nozzle, and the piston moves up andType: ApplicationFiled: May 25, 2010Publication date: December 2, 2010Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Dong-Youn Shin, Jun-Hee Lee, Su-A Park, Joon-Sik Park, Wan-Doo Kim
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Patent number: 7732561Abstract: The invention provides approximately monodispersible random copolymers obtained from monomeric mixtures of 2-ethyl-2-oxazoline with 2-isopropyl-2-oxazoline, production method thereof and 2-isopropyl-2-oxazoline homopolymer obtained by using special initiator. Such polymers exhibit temperature-responsiveness in an aqueous solution within a broad temperature range, and are useful materials in the technical fields of surface chemistry and biomaterials.Type: GrantFiled: August 30, 2006Date of Patent: June 8, 2010Assignee: Japan Science and Technology AgencyInventors: Kazunori Kataoka, Yuichi Yamasaki, Joon-Sik Park
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Publication number: 20090287222Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.Type: ApplicationFiled: July 17, 2008Publication date: November 19, 2009Inventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
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Publication number: 20090156782Abstract: The invention provides approximately monodispersible random copolymers obtained from monomeric mixtures of 2-ethyl-2-oxazoline with 2-isopropyl-2-oxazoline, production method thereof and 2-isopropyl-2-oxazoline homopolymer obtained by using special initiator. Such polymers exhibit temperature-responsiveness in an aqueous solution within a broad temperature range, and are useful materials in the technical fields of surface chemistry and biomaterials.Type: ApplicationFiled: August 30, 2006Publication date: June 18, 2009Inventors: Kazunori Kataoka, Yuichi Yamasaki, Joon-Sik Park
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Publication number: 20090081458Abstract: The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.Type: ApplicationFiled: April 28, 2006Publication date: March 26, 2009Inventors: Kazunori Kataoka, Aya Koide, Kensuke Osada, Yuichi Yamasaki, Shigeto Fukushima, Joon-Sik Park